Half to thomas w



(No Modl.)

T. W. BEES.

RANGE BOILER.

Patented Mar. 12, 1889.

N. PETERs mmv-Ullwmpmr. wnhingion, 0.6.*

ArnNT OFFICE.

THOMAS W. REES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO THOMAS lV. SNOIVDEN AND RICHARD T. STOOKMAN, BOTH OF S YllllE PLACE.

SPECIFICATION forming part of Letters Patent No. 399,558, dated March 12, 1889.

Application iiled December l2, 1887. Serial No. 257,649. (No model.)

To (LZ/l wil/0711, t may concern;

lle it known t-hat I, THOMAS lV. BEES, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Range-Boilers, of which the following is a specification.

The object of my invention is to provide a simple. cheap, and eilieient means oi? effecting a circulation of water in that class of rangeboilers or water-heaters which are Within the structure of the range and are iixedly set in respect to the fire-pot of the saine; and this object I attain in the manner hereiliat'ter set forth, reference beii'ig had to the accompanying drawings, lin which Figure l is a longitudinal section of sufiicient of a range with back-log boilerto illustrate my invention. Fig. 2 is an enlarged sectional view illustrating that portion of the structure to which niyinvention particularly relates. Fig. 3 is a perspective view of the boiler detached iroin the bri elc-work structure, and Figs. i and are views illustrating modiiied li'orms oli' joint between the boiler and the attachment.

In Fig. l, A represents a range-boiler ol the character known as the back-log boiler, which is set in the brick-work at the rear of the `fire-pot and oven or the range, and is heated by the circulation ot the products or' eon'ibustion around the saine as said products pass to the chimney. Such a boiler has no means olf causing a circulation ot the water therein; hence it is regarded inferior to that class olf range-boilers in which the boiler is outside ol` the brick-work structure and is connected by pipes with a water-back 'forniing one ol the walls oi the tire-pot, so as to cause a circliilation oi water lroni one to the other; but, on the other hand, the back-log boiler is cheaper than the circulating-boiler, and is therefore employed almost universally in houses of the cheaper class.

The device `forming the subject oli' my invention has heen devised especially for use in cminection with back-log boilers or waterreservoirs within the range structure and iixedly set in respect to the lire-pot ol? the range for the purpose ot causing a circulation of water therein and the heating oi' the water more rapidly and to ahigher temperature than usual.

On reference to Figs. l, 2, and 3, it will be seen that in the front of the boiler A, at a point in the rear of the fire-pot of the range, is formed an opening, into which is screwed the rear end of a nipple, D, to the front end of which is screwed the rear end of a hollow plug, F, which passes through the opening in the rear wall of the lire-pot and the heatingchamber casing back of the same, the front end of the plug projecting, preferably, a short distance into the lire-pot, as shown in Fig. l, although it may, if desired, be iiush with the wall of the fire-pot.

Surrounding the nipple D is a collar, G, and between the inner end of the latter and the shell of the boiler is a packing-ring, a, the front end of the collar bearing against the inner end of the plug F, so that as the latter is screwed up the collar is forced firmly against the packing-ring and the shell of the boiler is drawn against the saine, compression of the packing-ring being thus effected and a tight joint insured. If desired, a packingring may also be interposed between the plug F and the collar G.

The device described forms a cheap and simple attachment, which can be readily ap plied to the boiler before the latter is set in place, but is of especial advantage for application to a boiler already in use, as it is simply necessary to torni openings in the back of the :fire-pot and front oi' the boiler-shell and introduce the nipple and plug into place from the inside of the iire-pot, no removal or disturbance oi' the range structure, brick-work, or boiler being required, a-nd but a single water-tight joint having to be formed. These advantages are attained by the apl'ilication' ot the plug to any boiler or water-heater located within the structure of the range and iixedly set in respect to the iirepot ot the same.

I have found in practice that, although the plug has but a single passage, there is an effective circulation of water, as the plug is so highly heated that the water is vaporized therein, and the vapor globules find their way into the boiler and are replaced by fresh sup- IOO plies of water, a much higher temperature being imparted to the water in the boiler than is possible in the absence of the attachment.

Although I prefer the use of the nipple and .collar in carrying out my invention, the ernployment of these parts is not absolutely necessary in every case. For instance, the plug may be screwed onto a short nipple and may bear directly on the packing-ring, as shown, for instance, in Fig. 4; or the plug may even be screwed directly into the shell of the boiler, as shown in Fig. 5.

I-Iaving thus described my invention, I claim and desire to secure by Letters Patentl. The combination of a range and a boiler or water-heater located within the structure of the range and iixedly set in respect to the fire-pot of the saine, with a plug having av screw-connection with the shell of the boiler, and having a closed outer end which projects to or into the fire-pot of the range, all substantially as specified.

2. The combination of a range and a boiler or water-heater located within the structure of the range and 'fXedly set in respect to the fire-pot of the same, with a nipple screwed directly into the shell of the boiler and pro` jecting therefrom, a hollow plug screwed onto said nipple and projecting into the fire-pot of the range, and a packing-ring for preventing leakage at the shell of the boiler, all substantially as specified.

3. The combination of a range and a boiler or water-heater located within the structure of the range and iixedly set in respect to the lire-pot of the same, with a nipple screwed into and proj ecting from the shell of the boiler, a hollow plug screwed onto the outer end of the nipple and projecting into the irepot of the range, and a collar and packing interposed between the said plug and the shell of the boiler, all substantially as specified.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

THOMAS w. Rims.

Witnesses:

VILLIAM D. GONNER, HARRY SMITH. 

